Enduring dynamics including attachment styles and changes in the nature of interactions during the course of marriage such as increased disillusionment and mounting conflict have been implicated in separate accounts of relationship dissatisfaction and dissolution. However, the viability of integrated accounts is not well understood, especially in collectivist, non-Western contexts. Toward elucidating this issue, we examined links between attachment style, facets of disillusionment versus emergent distress model features, and relationship satisfaction in married, mainland Chinese couples. Both partners in 404 heterosexual couples completed self-report measures of relationship satisfaction, attachment style, key features of the disillusionment perspective (passionate love, relationship aggrandizement, disillusionment), and emergent distress account (problems in conflict management). Dyadic and structural aspects of mediation were tested using the actor–partner interdependence model. Within each gender, associations between elevations in avoidant attachment and reduced relationship satisfaction were mediated by participant and partner experiences of disillusionment on one hand and conflict management difficulties on the other hand. Acceptable fits were observed for final attachment–disillusionment and attachment–emergent distress models. Together, the results suggested increases in relationship disillusionment and conflict are plausible pathways by which high levels of avoidant attachment increase risk for losses of relationship satisfaction within married Chinese couples.